This example visualizes the top ten most populous countries in 2020 using a horizontal bar chart, rendered as SVG. The code combines D3 v7 utilities—`csv`, `scaleBand`, `scaleLinear`, and `max`—to fetch and scale the data, while React’s `useState` and `useEffect` manage the asynchronous loading and component state. Axes are constructed manually with D3’s tick values and React’s JSX, drawing grid lines, tick labels, and bars within a translated `<g>` element. The chart updates entirely through React rendering, with no D3 selection or transition APIs involved.